More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
A true albino squirrel. Note the pink eyes.
Apparent and True Orbits of Alpha Centauri.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
True-color image of layers of haze in Titan's atmosphere.
A diagram showing one of Mendel’s crosses. True-breeding strains of pea plants with smooth and ...